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unfathomably Synonyms

Another word for unfathomably

Choosing another word for unfathomably depends on context, so the 13 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adverb (Context 1)

In a manner or to a degree that is impossible to comprehend, explain, or fully grasp.

Usage Example

"The ancient manuscript contained an incomprehensibly complex system of astronomical calculations."

Strongest
incomprehensibly
inexplicably
Strong
inscrutably
impenetrably
unintelligibly
enigmatically

• adverb (Context 2)

To an immeasurable or unimaginably great extent or depth.

Usage Example

"The submarine descended into an immeasurably deep trench in the Pacific Ocean."

Strongest
immeasurably
inestimably
Strong
incalculably
boundlessly
bottomlessly
unimaginably
infinitely

Opposites of unfathomably

The opposite of unfathomably shifts depending on context. Common opposites include:

fathomably
measurably
comprehensibly
understandably
finitely
intelligibly
explicably
superficially
See all opposites of unfathomably

• Nearby Words

unfasten
unfatherly
unfathomable
unfathomably
unfathomed
unfavorable
unfavorably

Cite this Entry

Wordmom. (2026). Synonyms for Unfathomably. In Wordmom Thesaurus. Retrieved Nov 3, 2026, from https://wordmom.com/synonyms/unfathomably
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